/Engine/Plugins/Runtime/MassGameplay/Source/MassRepresentation/Public/MassUpdateISMProcessor.h
static void UpdateISMTransform ( int32 EntityId, [FMassInstancedStaticMeshInfo](API\Plugins\MassRepresentation\FMassInstancedStaticMeshInfo) & ISMInfo, const FTransform & Transform, const FTransform & PrevTransform, const float LODSignificance, const float PrevLODSignificance )